Grate



w. 1. MERSFELDEH.

GRATE.

APPLICATION FILED !AN.15, 1921. 1,395,444; Patented Nov. 1, 1921.

ZSHEETS-SHEETI- 4 A 7% F v r q 9 INVENTOR. I

By Mimi/@7114 -vided with a draft-door 5.

UNITED STATES PATENT OFFICE.

WILLIAM L. MERSFELDER, OF DETROIT,

MICHIGAN, ASSIGNOR TO DETROIT STOVE GRATE.

Specification of Letters Patent.

Patented Nov. 1, 1921.

Application filed January 15, 1921. Serial No. 437,439.

T all whom it may concern:

Be it known that I, WVILLIAM L. Mans- FELDER, a citizen of the United States, and residing at Detroit, in the county of \Vayne and State of Michigan, have invented a new and Improved Grate, of which the following is a specification.

This invention relates to grates for stoves and furnaces, and its object is to provide a grate ring adapted to support the fuel adjacent the sloping wall of the fire pot, and which may be turned back and forth to shake down the ashes and clinkers, and to provide a novel and easily introduced shaker bar by means of which the grate ring may be oscillated.

This invention consists in the details of construction illustrated in the accompanying drawing and particularly pointed out in the claims.

In the accompanying drawings, Figure 1 is a front elevation of a furnace showing the mounting of the lever for shaking the circular portion of the grate. Fig. 2 is a side elevation of the shaker bar and lever. Fig. 3 is a plan of this improved grate. Fig. 4 is a perspective of the means for attaching the shaker bar to the circular rate.

Similar reference characters refer to like parts throughout the several views.

In the drawings 1 indicates a shell of a furnace having a front 2 provided with a fire-door 3 and an ash-door 1, which is pro- The fire-pot has a frusto-conical wall 6 resting on the cover 7 of the ash-pit to whose sides 8 are attached the supporting bars 10 for the grate. The front ends 9 of these bars slope down so that the grate may be slid out of the ash-pit as a unit when the door 4 is opened.

The grate comprises a substantially circular base 12 having feet 13 and 14 adapted to slide on the bars 10, a grate ring 15 and two substantially semi-circular rocking members 16. The base 12 has curved pockets 1'? to receive the balls 18 on which the ring grate rests. Extending down fromthe grate ring within the circular base are the guide fingers 40 by which this ring grate is held in position on the balls.

The left side of the base 12 is indented at 19 to permit movement of the depending lug 20 (Fig. 4) on the lower side of the grate ring. This lug has a substantially L-shaped pocket 22 with a forward extension 23 and a downward extension 24, also shown in Fig. 2, the forward extension 23 being of sufficient width to permit the passage of the hook 25 at the rear end of the shaker bar 26. This bar is moved longitudinally rearwardl 1 after the grate is in position until its end 25 passes into the pocket 22, when it is turned to the position shown in F ig. 2 where it holds itself in position.

This shaker bar is introduced through the hole 27 in the furnace front 2 and the lug 28 on this bar limits its forward movement and therefore the rearward movement of the up per end of the lever 29 to which the shaker bar is connected by the pin 30, the lever being pivoted at 32. This lug 28 therefore prevents the operator from bruising his fingers on the furnace front.

The grate members 16 have rearwardly extending shafts 33 and forwardly extending shafts 3d and 35 mounted in bearings carried by the base 12, the gear segments 36 on the front shafts causing these grate members to ,rock together. This construction is old and forms no part of the present invention.

The details and proportions of this grate may all be changed by those skilled in the art without departing from the spirit of my invention as set forth in the following claims.

I claim 1. In a grate, the combination of a base and a grate ring rotatably supported thereon. a shaker bar having a hooked rear end. said grate ring having a depending lug provided with a substantially L-shaped pocket to receive said hook, and means to reciprocate said shaker bar to rotate the grate ring.

2. In a grate for furnaces, the combination of a base and means to support the base. said base having curved pockets, bearing balls in said pockets, a grate ring resting on said bearing balls and adapted to oscillate thereon, said grate ring having a depending lug at one side and the base having a reentrant portion to permit said lug to move back and forth, said lug having a pocket, a shaker bar extending from the front of the furnace to said pocket and having a downwardly extending portion adapted to engage in said pocket, and means to reciprocate the shaker bar.

WILLIAM L. MERSFELDER. 

